<template>
  <view class="goods-item">
<!-- 商品列表区域 -->
<block v-for="(goods, i) in cart" :key="i">
  <my-goods :goods="goods" :show-radio="true" :show-num="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></my-goods>
</block>
      
<!-- 商品左侧图片区域 -->
<view class="goods-item-left">
  <radio :checked="goods.goods_state" color="#C00000" v-if="showRadio" @click="radioClickHandler"></radio>
  <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
</view>

    <!-- 商品右侧信息区域 -->
    <view class="goods-item-right">
      <!-- 商品标题 -->
      <view class="goods-name">{{goods.goods_name}}</view>
      
<view class="goods-info-box">
  <!-- 商品价格 -->
  <view class="goods-price">￥{{goods.goods_price | tofixed}}</view>
  <!-- 商品数量 -->
  <uni-number-box :min="1" :value="goods.goods_count" @change="numChangeHandler"></uni-number-box>
</view>

      </view>
    </view>
  </view>
</template>

<script>
 export default {
   // 定义 props 属性，用来接收外界传递到当前组件的数据
   props: {
     // 商品的信息对象
     goods: {
       type: Object,
       defaul: {},
     },
     // 是否展示图片左侧的 radio
     showRadio: {
       type: Boolean,
       // 如果外界没有指定 show-radio 属性的值，则默认不展示 radio 组件
       default: false,
     },
     // 是否展示价格右侧的 NumberBox 组件
     showNum: {
       type: Boolean,
       default: false,
     },
   },
 }
    data() {
      return {
        // 默认的空图片
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png',
      }
    },
    
    filters: {
      // 把数字处理为带两位小数点的数字
      tofixed(num) {
        return Number(num).toFixed(2)
      }
    },
    
methods: {
  // NumberBox 组件的 change 事件处理函数
  numChangeHandler(val) {
    // 通过 this.$emit() 触发外界通过 @ 绑定的 num-change 事件
    this.$emit('num-change', {
      // 商品的 Id
      goods_id: this.goods.goods_id,
      // 商品的最新数量
      goods_count: +val
    })
  }
}
    
    
  }
</script>

<style lang="scss">
.goods-item {
  // 让 goods-item 项占满整个屏幕的宽度
  width: 750rpx;
  // 设置盒模型为 border-box
  box-sizing: border-box;
  display: flex;
  padding: 10px 5px;
  border-bottom: 1px solid #f0f0f0;
}

.goods-item-left {
  margin-right: 5px;
  display: flex;
  justify-content: space-between;
  align-items: center;

  .goods-pic {
    width: 100px;
    height: 100px;
    display: block;
  }
}

.goods-item-right {
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: space-between;

  .goods-name {
    font-size: 13px;
  }

  .goods-info-box {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .goods-price {
    font-size: 16px;
    color: #c00000;
  }
}
  }
</style>